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Mirrors > Home > ILE Home > Th. List > rexv | Unicode version |
Description: An existential quantifier restricted to the universe is unrestricted. (Contributed by NM, 26-Mar-2004.) |
Ref | Expression |
---|---|
rexv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rex 2423 |
. 2
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2 | vex 2692 |
. . . 4
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3 | 2 | biantrur 301 |
. . 3
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4 | 3 | exbii 1585 |
. 2
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5 | 1, 4 | bitr4i 186 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-rex 2423 df-v 2691 |
This theorem is referenced by: rexcom4 2712 spesbc 2998 abnex 4376 dfco2 5046 dfco2a 5047 |
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